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QoS-aware service flow mapping in mobile wireless all IP networks

Active Publication Date: 2008-01-03
CISCO TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because a mobile station may roam anywhere, statically configuring gateways to apply the correct QoS is burdensome and time-consuming.

Method used

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  • QoS-aware service flow mapping in mobile wireless all IP networks
  • QoS-aware service flow mapping in mobile wireless all IP networks
  • QoS-aware service flow mapping in mobile wireless all IP networks

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0010]Embodiments of the present invention provide QoS-aware service flow mapping in an access network. In one embodiment, a message is received from an access device at a gateway in the access network. The message includes a traffic flow specification. The traffic flow specification may include packet filter information, which is used to install a packet filter to route traffic to the access device. The gateway creates a session and associates the packet filter with it. When an incoming packet is received at the network device, the packet is matched to the packet filter. The incoming packet is then sent to the access device for the session.

[0011]The traffic flow specification may also specify QoS parameters that are desired. The QoS parameters may then be applied to the packet sent to the access device. In one embodiment, the gateway and access device may negotiate to determine a QoS to apply. For example, if the QoS is not supported by the gateway or cannot be applied at that time...

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PUM

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Abstract

In one embodiment, techniques provide QoS-aware service flow mapping in an access network. A message is received from an access device at a gateway in the access network. The message includes a traffic flow specification. The traffic flow specification may include packet filter information, which is used to install a packet filter to route traffic to the access device. The gateway creates a session and associates the packet filter with it. When an incoming packet is received at the network device, the packet is matched to the packet filter. The incoming packet is then sent to the access device for the session. The traffic flow specification may also specify QoS parameters that are desired. The QoS parameters may then be applied to the packet sent to the access device. The gateway and access device may negotiate to determine a QoS to apply.

Description

BACKGROUND OF THE INVENTION[0001]Embodiments of the present invention generally relate to networking and, more specifically, to service flow mapping in an access network.[0002]Traffic flow specifications (TFS) are used to specify packet filter information that is used for flow mapping. A packet filter is installed and used to determine where to send incoming packets. This is independent of layer 2 protocols. Thus, the filters do not map to an access network that uses layer 2 (the data link layer) to send packets to a mobile station in a worldwide interoperability for microwave access (WiMAX) network. Typically, a certain quality of service (QoS) may be statically configured on a gateway in an access network. Accordingly, when packets are received for the mobile station, a certain QOS is applied as the packets are sent to the mobile station.[0003]The above static configuration includes many disadvantages. For example, in WiMAX networks, a mobile station may roam to different networks...

Claims

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Application Information

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IPC IPC(8): H04J1/16H04L47/724
CPCH04L47/10H04L47/14H04L47/20H04L47/2491H04L47/2433H04L47/2441H04L47/22H04W28/02H04W8/04
Inventor YEGANI, PARVIZOSWAL, ANAND K.STAMMERS, TIMOTHY P.
Owner CISCO TECH INC
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